Finding the Fourth Proportional to 238,203.12, 328,736.25 and 157,491.87
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Solution
The fourth proportional to 238,203.12, 328,736.25 and 157,491.87 is: 217,349.32
Step by Step Solution
- Step 1: Write the proportion equation
238,203.12 : 328,736.25 = 157,491.87 : x - Step 2: Convert to fraction form
238,203.12/328,736.25 = 157,491.87/x - Step 3: Cross multiply
238,203.12x = 328,736.25 × 157,491.87 - Step 4: Simplify right side
238,203.12x = 51,773,286,749.29 - Step 5: Solve for x
x = 51,773,286,749.29/238,203.12 - Step 6: Final answer
x = 217,349.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.